を見るのが

watching

→ を
phrase Uncommon #12,642
watching Turns “見る” (to see or watch) into the subject of a sentence. The を before it marks what is being watched, and が marks the watching as the subject.
JA: 海を見るのが好きです。
EN: I like watching the ocean.

血を見るのが嫌なの。

I can't stand the sight of blood.

君の卒業式での姿を見るのが楽しみだ。

I'm looking forward to seeing you at your graduation ceremony.

演劇、映画などを見るのがお好きですか。

Do you enjoy watching plays, movies, and things like that?

いつか―本物の海を見るのが私の夢なのよ

Someday, seeing the real ocean is my dream.

— Arrietty (2010)

私にはあんたの顔を見るのが最大の後悔よ

Looking at your face is my greatest regret.

— 箪笥<たんす> (2003)

野球とフットボールを見るのが大好き。

I love watching baseball and football.

彼女はテレビでテニスの試合を見るのが大好きです。

She loves watching tennis matches on TV.